#3F389C#3F389C

#3F389C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.1% C 0.157 H 280.1°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#3F389C
RGB	rgb(63, 56, 156)
HSL	hsl(244, 47%, 42%)
HSV	hsv(244, 64%, 61%)
CMYK	cmyk(59.6%, 64.1%, 0%, 38.8%)
CIE-LAB	lab(30.12, 32.95, -53.68)
CIE-LCH	lch(30.12, 62.98, 301.54°)
OKLab	oklab(41.13% 0.0275 -0.1544)
OKLCH	oklch(41.13% 0.157 280.1)
XYZ	xyz(9.4629, 6.2848, 32.1605)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F389C #959C38

analogous

#38639C #3F389C #71389C

triadic

#3F389C #9C3F38 #389C3F

tetradic

#3F389C #9C3863 #959C38 #389C71

square

#3F389C #9C3863 #959C38 #389C71

split-complementary

#3F389C #9C7138 #639C38

monochromatic

#1B1842 #2D286F #3F389C #5951C0 #847ED1

Accessibility & contrast

On white

9.30

#3F389C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#3F389C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F389C

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F389C	#FFFFFF	#000000	##FFFFFF
##3F389C	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9F

Deuteranopia (green-blind)

#00439A

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3f389c;
/* rgb */ color: rgb(63, 56, 156);
/* oklch */ color: oklch(41.1% 0.157 280.1);

Tailwind

colors: {
  custom: {
    50: '#7e6fba',
    500: '#3f389c',
    950: '#000000',
  },
}

SCSS

$custom: #3f389c;
$custom-light: #7e6fba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f389c",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 156
  },
  "hsl": {
    "h": 244.2,
    "s": 47.17,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41128,
    "c": 0.15681,
    "h": 280.1
  },
  "luminance": 0.06285
}

Semantic roles & 50–950 ramp

primary

#3F389C

secondary

#B5BA76

accent

#D751CD

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3F389C

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →